Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6575350 | Method of applying a wear-resistant layer to a surface of a downhole component | Terry R. Matthias, Tom Scott Roberts | 2003-06-10 |
| 6454028 | Wear resistant drill bit | — | 2002-09-24 |
| 6348110 | Methods of manufacturing rotary drill bits | — | 2002-02-19 |
| 6234261 | Method of applying a wear-resistant layer to a surface of a downhole component | Terry R. Matthias, Tom Scott Roberts | 2001-05-22 |
| 6148936 | Methods of manufacturing rotary drill bits | Andrew David Bell | 2000-11-21 |
| 6116360 | Methods of manufacturing rotary drill bits | — | 2000-09-12 |
| 5944128 | Matrix hard facing by lost wax process | David Truax, Douglas Caraway, Andrew Murdock | 1999-08-31 |
| 5910766 | Vehicular accident locator and identification system | — | 1999-06-08 |
| 5732783 | In or relating to rotary drill bits | David Truax, Douglas Caraway, Andrew Murdock | 1998-03-31 |
| 5425288 | Manufacture of rotary drill bits | — | 1995-06-20 |
| 4191606 | Method for securing composition board panels together | — | 1980-03-04 |